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| Number | Title | Issue Date |
| 7967300 | Hydrostatically actuated workholding apparatus with high expansion and recovery sleeve A workholding apparatus includes a body, and a workholding sleeve composed of metal and carried by the body. A fluid chamber receives a fluid between the body and the workholding sleeve. Under fluid pressure, the sleeve is radially displaceable and recoverable to a ... | 06/28/2011 |
| 7331583 | Workpiece holder with a multi-piece bladder A workpiece holding apparatus comprises a body, a bladder carried by the body, and a sleeve that is carried by the bladder. A fluid chamber is at least partially defined by the body and the bladder for containing a fluid therein. The bladder comprises at least one f... | 02/19/2008 |
| 7316403 | Hydrostatic workpiece holder with a removable cartridge assembly A workpiece holding apparatus comprises a body, a cartridge assembly carried by the body and a sleeve. The cartridge assembly comprises at least one sealing member and a bladder supported by a retainer and at least partially defining a fluid chamber that houses a pr... | 01/08/2008 |
| 7059457 | Expansion motor The present invention is a unique motor comprising a containment chamber having thick walls surrounding a thin wall, is created when a plug is fusible joined. An inlet port and preferably a purging port are located in the thick walls. A motion is created when said e... | 06/13/2006 |
| 6311987 | Hydraulic pressurizing arrangements An arrangement for a hydraulically operated tool holder has a pressurizing system for operating a clamping device for a tool or workpiece. The pressurizing system comprises a movable operating element for pressure generation whereby the movement of the op... | 11/06/2001 |
| 6189196 | Precision-balanced shaft and method A shaft assembly including an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying a first member concentrically thereon for rotation therewith, an outer hub having a centrally-disposed bore therethrough and an outer s... | 02/20/2001 |
| 6182977 | Clamping device The clamping apparatus (10) has a clamping ring (13) of an elastomer, which has a U-shaped cross section. The clamping ring (13) is seated in a recess (15) in a holding device (12) having parallel side walls. The recess (50) can be connected via a connect... | 02/06/2001 |
| 6179530 | Expansion clamping chuck An expansion chuck for simultaneously chucking a tool shaft and a hollow tool part such as a beveling bush. A solid chuck body which can be chucked in the working spindle of a machine tool has in its chucking part a central receptacle bore to receive the ... | 01/30/2001 |
| 6164351 | Precision-balanced cutter head and method A rotatable cutter head comprising an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith, an outer hub having a centrally-disposed bore therethr... | 12/26/2000 |
| 6142487 | Centering and holding apparatus and method using inclined surface An apparatus for centering and holding a substrate including: (a) a substrate holding assembly defining a centerline; and (b) a substrate centering assembly including an alignment member, wherein the alignment member is disposed concentric with the center... | 11/07/2000 |
| 6077003 | Tool holder A tool holder with an elongate and expanding sleeve within a confining recess of a machine spindle to circumferentially engage the machine spindle and accurately, firmly and concentrically engage a machine tool adjacent to a machine spindle. In one form, ... | 06/20/2000 |
| 6065715 | Expandable shaft having spiral shaped projections and it's use for winding elongated material Expandable shaft for winding elongated material, especially soft paper and other nonwoven material. The shaft (10) has a number of radial openings (13) or grooves (22, 24) which house longitudinal blades (23), bars (11) or the like in such a way that thes... | 05/23/2000 |
| 6053670 | Frictionally clamped tool and holder In a modular system (10), with a holder part (12) for clamping in a spindle of a turning machine and a machining tool (14) attached interchangeably to this, the machining tool (14) has a hollow cylindrical shaft part (18) which overlaps a receiving mandre... | 04/25/2000 |
| 6015154 | Large displacement hydrostatic workpiece holder A hydrostatic tool holder having a displaceable metal sleeve formed with a plurality of circumferentially spaced and longitudinally extending slots and a flexible, polymeric ring defining at least in part a fluid chamber to separate the fluid in the chamb... | 01/18/2000 |
| 5979823 | Device for clamping a sleeve onto a rotatable driven tube A device for clamping a sleeve placed onto a tube for winding and/or unwinding a two-dimensional web, which, due to the clamping effect of at least one of the clamping elements to be engaged with the sleeve, is effectively connected with the tube which is... | 11/09/1999 |
| 5769487 | Chucking device for accurate mutual fixation of two members A chucking device for accurate mutual fixation of disk-shaped parts or rotationally symmetrical parts. The device has a chucking element that engages with members in a form-fitting manner and has an expansion sleeve that together with the chucking element... | 06/23/1998 |
| 5711538 | Chucking tool with an expansion sleeve A chucking tool for non-positive precision chucking of a part such as a workpiece or the shank of a tool, for example. The tool consists of a base body, an expansion sleeve that is detachably mounted on a part of the base body which is elastically deforma... | 01/27/1998 |
| 5556114 | Hydraulic expanding and contracting mandrel This invention relates to a workshop mandrel which is suitable for mounting work pieces on its cylindraceous outer surface. A cavity beneath the surface is filled with hydraulic fluid which causes the outer surface to expand when the fluid is pressurized ... | 09/17/1996 |
| 5516243 | Reamer chuck and tool expander A center tool with a shank receivable in a sleeve carried by a body of a holder which may have cutters on a work surface disposed outward of the sleeve. A hydraulic actuator forces the sleeve radially inward to grip, releasably retain and center the shank... | 05/14/1996 |
| 5449182 | Universal substrate holding apparatus A universal substrate holding apparatus is disclosed comprising: (a) a first core member having a top end and a bottom end; (b) a first inflatable tube disposed around the first core member; (c) a first passageway defined by the first core member in communication w... | 09/12/1995 |
| 5388487 | Hydraulic tool holder with coolant jets A hydraulic chuck for securing a lathe shaft and cutting tool to a tool holder is provided with spray nozzles to project cooling fluid on the cutting tool.... | 02/14/1995 |
| 5174585 | Adjustable fastening device The invention relates to an adjustable fastening device e.g. for an axially-shaped, tubular, flat or spherical tool or working piece or machine part or a like of a desired shape. The device includes: a body section (1), a clamping means (2), mounted withi... | 12/29/1992 |
| 5141370 | High precision tool holder A quill is rotated in a spindle and carries a tool which is rotated with the quill about a common axis. The tool is held in a bore in the quill by a gland or sleeve that forms a portion of the bore and is expanded into contact with the tool by hydraulic p... | 08/25/1992 |
| 5127780 | Expandable holding device using a fusible alloy An expandable holding device for holding a component in which the clamping force is brought about by the solidification and expansion of a fusible alloy. The alloy is contained in an expansion chamber defined in part by a thin-walled, expansion sleeve. Th... | 07/07/1992 |
| 5030048 | Expandable tool holding device using a fusible alloy An expandable tool holding device for holding a tool or workpiece in which the clamping force is brought about by the solidification and expansion of a fusible alloy. The alloy is contained in an expansion chamber defined in part by a thin-walled, expansi... | 07/09/1991 |
| 4979853 | Cutting tool holder for high speed spindle machining system A fast tool change holder is provided for holding a tool adapter onto an internally delivered coolant spindle. The holder comprises an expandable split collet which can be inserted into the tool adapter and expanded in order to hold the adapter onto the s... | 12/25/1990 |
| 4958969 | Adapter sleeve An adapter sleeve, the diameter of which is altered by means of the pressure of a fluid, whereby, as a result of this change in diameter, an object is held by means of the clamping force of the adapter sleeve, characterized in that the adapter sleeve is m... | 09/25/1990 |
| 4840323 | Web winding and/or rewinding shaft structure A shaft construction for use in winding or rewinding a web such as a strip of paper, a band of woven cloth, a sheet of metal, and the like around its paper-made core comprises a center hollow shaft having a longitudinal air passage through it, and a plura... | 06/20/1989 |
| 4828198 | Roll support spindle A roll support spindle having a longitudinally extending peripheral surface at which there is mounted a series of expandable elastomeric membranes which are expanded by fluid under pressure to engage the roll.... | 05/09/1989 |
| 4811962 | Holder for machining thin walled cylinder Hydraulically actuated arbor for finish machining thin walled cylinder such as internal combustion cylinder liner without deflecting from initial free state out-of-round condition including flexible Teflon displacement shell and accurately adjustable mean... | 03/14/1989 |
| 4724595 | Bladder mandrel for hydraulic expansions of tubes and sleeves A bladder mandrel utilizing a sleeve of Pellethane.RTM. to effect tube expansions is disclosed herein. The sleeve which forms the bladder of the mandrel terminates in sealing beads which include fluid-capturing recesses. When the beads of the sleeve are s... | 02/16/1988 |
| 4677792 | Clamping or chucking system for a grinding wheel or disk A radially expansible thin-walled expansion sleeve (13) is expansible under hydraulic pressure by pressing a piston element (17) against hydraulic fluid in a chamber, upon operation of a threaded bolt (18) in a threaded bore (19) in the spindle (11) or an... | 07/07/1987 |
| 4651643 | Adaptors for use with printing cylinder mandrels Adaptors for expandable mandrels of printing presses are formed as annular members which are slidable over the journals of the mandrel and lockable thereto, the adaptors each having an outwardly expandable external periphery for gripping and holding a pri... | 03/24/1987 |
| 4624184 | Annular expansible heads for a printing cylinder assembly A printing cylinder is supported and located by dual annular hydraulically-expansible heads carried by a shaft and adjustable axially thereof and which are inserted into the printing cylinder and then expanded inwardly into locking engagement with the sha... | 11/25/1986 |
| 4616392 | Bladder mandrel for hydraulic expansions of tubes and sleeves A bladder mandrel utilizing a sleeve of Pellethane.RTM. to effect tube expansions is disclosed herein. The sleeve which forms the bladder of the mandrel terminates in sealing beads which include fluid-capturing recesses. When the beads of the sleeve are s... | 10/14/1986 |
| 4504179 | Clamping sleeve for tools or workpieces A clamping sleeve for tools or workpieces intended to be clamped with a truncated conical surface on a preferably cylindrical rotatable portion with a conical surface and to support the tool or workpiece with a substantially cylindrical surface concentric... | 03/12/1985 |
| 4502703 | Hydraulic power mandrel A power mandrel has a mandrel body extending along, generally centered on, and adapted to be rotated about an axis. A synthetic-resin tube generally centered on the axis, having angularly extending reinforcement fibers, and having opposite ends formed wit... | 03/05/1985 |
| 4467977 | Expanding headpiece for reels in general The invention concerns an expanding headpiece for reels in general, which comprises first and second flanges, mutually secured coaxially together in spaced apart relationship, at the area included between said flanges there being provided an annular chamb... | 08/28/1984 |
| 4466576 | Metering drum for filamentary material The metering drum for the weft thread of a weaving machine has a circumferential surface of rubber which is clamped between two supporting rings. The supporting rings may be movable axially or rotatably relative to each other so as to expand or constrict,... | 08/21/1984 |
| 4465220 | Device for supporting weld underbead An elastomeric mandrel has a shallow groove around the outer diameter. A woven sleeve of ceramic fiber surrounds the mandrel; which in turn is covered with a woven sleeve of fiberglass. The mandrel with coverings is inserted into tubing to be joined by we... | 08/14/1984 |
